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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CONTENT_COMMON_QUOTA_DISPATCHER_H_ | |
6 #define CONTENT_COMMON_QUOTA_DISPATCHER_H_ | |
7 | |
8 #include <map> | |
9 #include <set> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/id_map.h" | |
13 #include "ipc/ipc_listener.h" | |
14 #include "webkit/common/quota/quota_types.h" | |
15 | |
16 class GURL; | |
17 | |
18 namespace IPC { | |
19 class Message; | |
20 } | |
21 | |
22 namespace WebKit { | |
23 class WebStorageQuotaCallbacks; | |
24 } | |
25 | |
26 namespace content { | |
27 | |
28 // Dispatches and sends quota related messages sent to/from a child | |
29 // process from/to the main browser process. There is one instance | |
30 // per child process. Messages are dispatched on the main child thread. | |
31 class QuotaDispatcher : public IPC::Listener { | |
32 public: | |
33 class Callback { | |
34 public: | |
35 virtual ~Callback() {} | |
36 virtual void DidQueryStorageUsageAndQuota(int64 usage, int64 quota) = 0; | |
37 virtual void DidGrantStorageQuota(int64 granted_quota) = 0; | |
38 virtual void DidFail(quota::QuotaStatusCode status) = 0; | |
39 }; | |
40 | |
41 QuotaDispatcher(); | |
42 virtual ~QuotaDispatcher(); | |
43 | |
44 // IPC::Listener implementation. | |
45 virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE; | |
46 | |
47 void QueryStorageUsageAndQuota(const GURL& gurl, | |
48 quota::StorageType type, | |
49 Callback* callback); | |
50 void RequestStorageQuota(int render_view_id, | |
51 const GURL& gurl, | |
52 quota::StorageType type, | |
53 int64 requested_size, | |
54 Callback* callback); | |
55 | |
56 // Creates a new Callback instance for WebStorageQuotaCallbacks. | |
57 static Callback* CreateWebStorageQuotaCallbacksWrapper( | |
58 WebKit::WebStorageQuotaCallbacks* callbacks); | |
59 | |
60 private: | |
61 // Message handlers. | |
62 void DidQueryStorageUsageAndQuota(int request_id, | |
63 int64 current_usage, | |
64 int64 current_quota); | |
65 void DidGrantStorageQuota(int request_id, | |
66 int64 granted_quota); | |
67 void DidFail(int request_id, quota::QuotaStatusCode error); | |
68 | |
69 IDMap<Callback, IDMapOwnPointer> pending_quota_callbacks_; | |
70 | |
71 DISALLOW_COPY_AND_ASSIGN(QuotaDispatcher); | |
72 }; | |
73 | |
74 } // namespace content | |
75 | |
76 #endif // CONTENT_COMMON_QUOTA_DISPATCHER_H_ | |
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